Printing-press chase



I 1,624,751 April 12, 19276 CMMLAN PRINTING PRESS CHASE Fi led Aug. 6, 1926 Patented Apr. 12, 1927.-

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ALBERT QMGMILL AN, or RIVERnAizE, 1v; any: ratin.

- team PRINTING-PRESS .CHASEQ Application fi1ed- Aug'ust6, 1-92 6; 's er'iarno.127,672.

My invention relates to printing press chases, and particularly'to a chase structure adapted for use on job presses'and the like to permit the printing of a relatively wider impressionthan is ordinarily possible.

An object of this invention is to provide "a chase structure which can be fitted for use in place. of a standard chase, and which prothat no part will interfere with the proper operation of the inking rolls or other mechanism of the press. y

Still another object is to provide a chase having an ofiiset to receive the locking quoins, which offset is of awidth corresponding substantially to the standard Width of Wooden or metal furniture, so that the offset can be readily filled when it is desired to use the structure as an ordinary chase.

With the above and other objects in view, it will be apparent to those skilled in'the art, my invention includes certain novel features of. construction and combination of parts which will be set forth in connection with the drawing. v 1

In the drawing:

Fig. 1 is a view in plan of my improved chase with aprinting form locked in place therein.

side of the chase illustrating a slightly different manner of use.

Fig. 3 is a sectional view substantially on line '33 of Fig.1.

Fig. 4 is a fragmentary view showing a slightly modified form which the invention might take. c 1

The top side piece 1 and the end pieces 2 and 3 are of substantially the form and construction of a standard chase, and the ends of the lower side bar 4: are shaped in the usual manner. to fit behind the hooks or clips by which the chase issupported and held in the press.

In the present instance I have illustrated a chase of substantially the proportions of a standard 10"x15 chase, and the modification and changes from the standard chase, as contemplated by my invention are rice. g

calculated to adapt the chase to print upon a card of substantially ll in width. A popular type of job press is the 10"x15 size, and a popular and economical sheet orv card size is 11 ;14, as this is a quarter sheet secured from/one of the standard' stock sizes.

WVith standard chases it is necessary to place the locking .quoins between the upper orlower side-bars 1 and 4 and the'type form or cut, and this necessarily limits the width of type matter which can be accommodated. With my invention I offset the middle portion 5 of the lower bar 4, intermediate the end portions adapted to fit the hooks or clips of the press, and thisoifset is made sufficient to substantially accommodate the locking quoins 6 and 7 Little difficulty is encountered as to the length of the form, and ample space is usually available for the locking quoins 8' and 9 'at'the ends of the standard chase. *The inking rollsusually travel adj acent thelower edge .of the chase, andit is I perhaps preferable that the ofiset portion 5 be beveled on its outer front corner, as illustrated at 10in Fig. 3.

Where the chase is to be used for asmaller portion 5 be of a substantially standard type furniture width. stance I'have shownv this in substantially a proportion of four picas, but this' mightbe varied as conditions require. Fig. 2 1s a fragmentary View of the lower In the present in- In the main embodiment I have shown the changes and variations can be made in the form, construction and arrangement of the parts to suit difierent reqiurementsof use,

without departing from the spirit and scope of my invention.

Iclaim:

1. A printing press chase of substantially rectangular frame having one of thesides thereof offset in its middle portion to receive looking quoins, the middle portion being ofiset a distance corresponding substantially to a width of standard type furniture.

2. A printing press chase comprising a I substantially rectangular frame having itsv in its middle portion to accommodate lock- 10 ing quoins, the middle portion being ofiset a distance corresponding substantially to a width of standard type furniture and being reduced and beveled on its outer forward In testimony whereof I hereunto afi'ix my signature.

ALBERT MCMILLAN- 

